Elevating truck



July 10,1923.

INVENTOR.

A. SONANDER ELEVATING TRUCK Filed Nov. 17 .1919

Il Illlll' lllllll' WITNESSES..-

Patented .luly 1Q, 1923.

OEIRUTLAND. VVERMON T, A (30:31 BATIONv OF ANDREW sonANnER, oraurrann,vizn lyr'our, a'ssrornon fro Howie soatiiconrauv, I

Application ifledNovember'17,1918i-Seria1NoQ338fl30. I

T 0 all whom-it may concern:

Be it-known thatI, ANDREW Sona'nnnn, a"

citizen of the United States, residing at- Rutland, county of Rutland,and State of- Vermont, have invented certain new "and usefulImprovements in Elevating Trucks, of which the followingisa full andclear specification.

This invention relates to trucks or the like and has for its object to'p'rovide an emplify the invention ina preferred 'embodiment.

In the drawings y I Figure 1 is a perspective i w f ahflndytruckgembodying' the principles of this invention, parts being'brokenaway and parts shown in section; i g

Figure 2 1s a longitud nal' section of. the

same, parts beingbroken' away and parts now he -readily understood. Letit be supshown in side elevation;"' Figure 3 is a viewsimilar to Figure2 showing the parts inchanged positions;

Figure 4: isv a longitudinal section of the forward end of the truckshowing the elevating frame locked in raised position;

Figure 5 is a front elevation of the truck, parts being broken away andparts shownin section.

Referring more particularly to the draw ings, the truck comprises anupper or elevating frame a mounted above a loweror traveling frame I).The lower frame is provided with rear wheels c and a front or guidingwheel cl to the swivel frame of which is connected a handle or drawlever e. A pedallever f is pivotally mounted upon the traveling frame?)foroperating certain elements to be hereinafter described in such a wayas to control the position of a hook g which is'pivotally mounted uponthe elevating frame. The hook g is adapted to be engaged by a hook arm hwhich is integral with the lever c, thus adapting the forward end of theelevating frame to be lifted by means of the lever e. A lever 2', whichis .journalled in upwardly projecting lugs or brackets on the travelingframe, is provided -shown in Figure 2.

withrollers m which run on tracks a on the elevating frame so thatwhenever the forward endof saidelevating'frame is raised the lever'z' isoscillated on its axis andtransmits its movement by a connecting'rodt toa 'le'verarm s which is rigidly conne t djtrear shafts; to which are k'ed the lever arms provided 'with anti-friction rollers my The rollers: miengage the-under surface of a cross bar orv member 1' which is Iprovided' with sockets '11; for accommodating the rollers m. Byreferring to Figurefi, itwill be seen thatthe' side bars of the]traveling frame 7) areconnect-ed in front' by' -an upwa-rdly presentedok which sup ports a collar 0 towhichtheleverc is fillcrumed. As shownin Figures2y8 and ki the hook lever g is provided in its depending armwith a rounded socket which is adapted v to embrace atransverse rod[which is carr ried by laterally spaced latch dogs 4; which arefulcrumed on the opposite side bars ofjthe' traveling frame Z).Eachof'the latch dogs o is provided with a forwardly presented cam'arm:lc which is adapted to be engaged by the rear arm iof the pedal arm f.

The operation of my improved truck will posed thatathe elevating frameis lowered asshown in Figures 1 and 2." In this position,- the side barsof the frame a rest upon and are supported by the side bars'of frame I);v v A load having been deposited uponthe eleshown in dotted lines inFigure 2. The rear armof pedal lever f is thrown into engagement withthe lower .arm of hook g' and throws the hook g intoposition to be engaged by y the hook arm h when the lever e is moved forwardly from itsvertical position The continued move ment of the lever 6 until itreaches the position shown in Figure 3, serves to elevate the forwardend of the elevatingframe a. At the same time, the tracks at operatingupon rollers m rock the lever i'on' its axis and communicate a similarmovement to the rear lever s which serves to elevate the rear end of theelevating frame in a correspondin manner. As the hook g is lifted, itsfulcrum rod releases the cam arms is of the latch dogs '1: and permitssaid latch dogs to drop into the position shown in Figure 3 in whichposition, they, are locked by the latch socket formed in the dependingend; of the hook lever 9 when the leverei' is lifted slightly so as tolower the elevating frame into the position in which it restsupon theupper ends of the latch dogs 1); As shown in Figure 4: of the drawingswhen the elevating frame is supported by the dogs. '0 in raisedposition, the lower end of book lever g operates by gravity to hold.said: hook out of the path of the hook end it of lever or handle. e andthus permits said: lever or handle to be lowered in to position to dragthe truck without lifting the elevating frame. In the position shown inFigure; l, the elevating frame with its load is supported' in front bythe laterally spaced dogs 11, o, and in the rear by laterally spacedlever armsw, 20, which carry the rollers m, m The interlockingengagement of rollers m,

m, with sockets u, u, preventsv forward or. rearward swing of theelevating frame asthe'lr angular movements do not correspond to theangular movements of dogs *0, o. When it is desired to lowerthe-elevating frame. the lever 0 may be moved into position shown inFigure 3 when by applying. pressure to either of the pedal levers f thedogs 1; are moved rearwardly to release the hook lever g after whichthe: (31%?- vating frame may be lowered by the lover of. said leverarms. beingsuitably disposed to be oscillated by said second frame whenan elevating movement is imparted thereto, and means for elevating, theother end of said frame.

2. In" a: truck, a traveling frame, an elevating. frame provided withinclined tracks at one end, lever arms bearing on said tracksandadaptedto be. oscillated by said tracks when that end of theelevating frame is raised, lever arms adapted to. raisethe other end ofsaid elevating frame, means for connecting the first mentioned. leverarms to the second mentioned. lever arms whereby the oscillatorymovement imparted to the first mentionedlever arms by the. upwardmovement of one end. of the: elevating frame is transmitted to thesecond mentioned. lever arms for. elevating the. other end of saidelevatingframe, and means for raising the first mentioned end: of the.elevating frame.

3. In. atruck, a traveling frame, a lever fulcrumed on. saidtravelingframe, an elevating frame, a-hookmounted on one end of; said elevatingframeand adapted to be en-- gaged. by said lever for lifting that endofthe elevating frame, alever arm oscillated by engagement Withthe liftedend. of said elevating frame, a.- second eratably connected to the firstmentioned-lever arm for lifting the other end ofsaid elevatingframalatch dogs pivoted on-said traveling frame and adapted to be movedinto and out of position to support said. elevating frame in raisedposition, and means adapting said latch dogstohold said hook ininoperative position when said elevating frame is in raised position.

ANDREW SONANDER.

lever arm op-

